Mastros vs LinkMartin

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mastros compared with LinkMartin
Detail	Mastros	LinkMartin
What it does	Privacy-first Chrome extensions that export chat and social media data to spreadsheets	AI bookmark manager that saves pages, writes descriptions and tags, and shows your bookmarks in Google search results
Stage	Startup	Not given
Founded	2026	Not given
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	Free: 100 profiles and 100 messages per month (WhatsApp), or 250 profiles and 300 messages per month (Telegram), or 250 records (LinkedIn). Instagram and TikTok free and unlimited in beta. Pro: $9/month with 5,000 profiles and 10,000 messages per month (WhatsApp), or 5,000 records (LinkedIn). Scale:	Free: 50 AI credits per month, 5 categories, unlimited saves. Pro: $5 per month or $50 per year for unlimited AI credits, unlimited categories, custom AI instructions, and own AI key option.
Key features	Export group members and chat messages to CSV, JSON or JSONL Bulk media download from chats Export LinkedIn searches with Sales Navigator support Extract email and website from Instagram and TikTok bios Calculate exact TikTok engagement rates Process all data in the browser with no server involvement Read-only with no automation or message sending	Shows bookmarks in Google search results AI-generated descriptions, tags, and categories Search across titles, descriptions, tags, categories, and web addresses Custom AI instructions for how to write descriptions Use your own AI key from OpenAI, Anthropic, or compatible providers Search library from Claude, ChatGPT, and Codex Related bookmarks suggestions Import from Chrome, HTML, or CSV files Export everything anytime Local storage in browser with optional sync
What makes it different	Works with no account creation, API key or password required Reads only visible data; cannot reveal hidden information or deleted messages Five tools with the same pricing model and interface Instagram and TikTok extensions are free and unlimited during beta	Works offline with bookmarks stored locally in your browser No account required to start saving and searching Bookmarks automatically appear in Google search results Import with folder structure preserved as tags Free export forever with no deletion blocks
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	35 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	10	0
Citation Flow (Majestic)	28	0
Referring domains (Majestic)	54	0

5 details filled in for both companies.

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